Finding the Fourth Proportional to 1,030,292,659.72, 1,421,674,736.52 and 696,491,462.08
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Solution
The fourth proportional to 1,030,292,659.72, 1,421,674,736.52 and 696,491,462.08 is: 961,070,921.45
Step by Step Solution
- Step 1: Write the proportion equation
1,030,292,659.72 : 1,421,674,736.52 = 696,491,462.08 : x - Step 2: Convert to fraction form
1,030,292,659.72/1,421,674,736.52 = 696,491,462.08/x - Step 3: Cross multiply
1,030,292,659.72x = 1,421,674,736.52 × 696,491,462.08 - Step 4: Simplify right side
1,030,292,659.72x = 990,184,315,841,013,632 - Step 5: Solve for x
x = 990,184,315,841,013,632/1,030,292,659.72 - Step 6: Final answer
x = 961,070,921.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.